'New Formula'. Quality student string similar to Dominant
Silver on synthetic core.
All strings are ball end, full size, medium tension unless specified.
Good string strong tone
Pros: It's a string that provides a strong tone and lasts
Cons: I haven't noticed any cons as it is the same reliable quality as previous purchases but for some reason this time the string came (along with other properly packaged strings) in a plastic zip bag rather than the usual paper wallet??? No effect on the string but kinda strange, all strings were in one envelope anyway.